ok after a little more investigation , this is not explained in man page, that explain why i was thinking it was impossible.
but i tried the usual list way using by all the NG suite .
like for interface it seems that if you comma spearate the lists , it will works...
i never use the wordlist mode, only the database mode because it's way better to use this with big lists, sorry if i can say it's impossible you're right it is possible
aircrack-ng -w list1,list2,list3 xxxxx.cap
sorry if i confused you . im an expert in database mode but not in wordlists one , sorry again
but i bet you will experiment that's it is very slow cracking using wordlists, again it's way better to use database mode in conjuntion with airolib-ng
btw thx for your words , im trying to share and help =)